diff --git a/web-to-ppt/popup.js b/web-to-ppt/popup.js
index 008fcd0..241314a 100644
--- a/web-to-ppt/popup.js
+++ b/web-to-ppt/popup.js
@@ -1,4 +1,4 @@
-const SETTINGS_KEY = 'webToPPTSettings';
+const SETTINGS_KEY = 'webToPixsoSettings';
 const DEFAULT_SETTINGS = { useProxy: false, concurrency: '8', captureMode: 'mixed', captureWidth: null };
 const MIN_CAPTURE_WIDTH = 320;
 const MAX_CAPTURE_WIDTH = 3840;
@@ -16,19 +16,6 @@ function normalizeCaptureWidth(value, fallback = null) {
   return Math.max(MIN_CAPTURE_WIDTH, Math.min(MAX_CAPTURE_WIDTH, number));
 }
 
-function normalizeSettings(value = {}) {
-  return {
-    useProxy: Boolean(value.useProxy),
-    captureMode: 'mixed',
-    captureWidth: normalizeCaptureWidth(value.captureWidth, null)
-  };
-}
-
-async function getSettings() {
-  const result = await chrome.storage.local.get({ [SETTINGS_KEY]: DEFAULT_SETTINGS });
-  return normalizeSettings(result[SETTINGS_KEY]);
-}
-
 async function getCurrentViewportWidth() {
   try {
     const [tab] = await chrome.tabs.query({ active: true, currentWindow: true });
@@ -65,45 +52,42 @@ async function exportPptx() {
   setProgress(5, '准备采集...');
 
   const captureWidth = normalizeCaptureWidth(captureWidthInput.value, null);
-  const settings = { ...DEFAULT_SETTINGS, captureWidth };
 
   try {
-    // 1. 抓取 DOM
+    // 1. 触发采集（background 会缓存数据）
     setProgress(15, '正在采集页面...');
-    const response = await chrome.runtime.sendMessage({
+    const captureResult = await chrome.runtime.sendMessage({
       type: 'WEB_TO_PPT_CAPTURE_START',
-      options: settings
+      options: { captureWidth }
     });
 
-    if (!response || !response.ok) {
-      throw new Error(response?.error || '采集失败');
+    if (!captureResult || !captureResult.ok) {
+      throw new Error(captureResult?.error || '采集失败');
     }
 
-    // 2. 获取 JSON 数据（从 background 返回的文件路径读取不了，直接从 background 拿数据）
-    // 需要让 background 返回 JSON 数据而不是文件
-    setProgress(40, '采集完成，正在转化...');
-
-    // background 已经下载了 JSON 文件，但我们需要数据来转化
-    // 用另一个消息获取数据
-    const dataResponse = await chrome.runtime.sendMessage({
+    // 2. 获取缓存数据
+    setProgress(40, '采集完成，获取数据...');
+    const dataResult = await chrome.runtime.sendMessage({
       type: 'WEB_TO_PPT_GET_DATA'
     });
 
-    if (!dataResponse || !dataResponse.ok) {
-      throw new Error(dataResponse?.error || '获取数据失败');
+    if (!dataResult || !dataResult.ok) {
+      throw new Error(dataResult?.error || '获取数据失败');
     }
 
-    const jsonData = dataResponse.data;
+    const jsonData = dataResult.data;
 
     // 3. 转化
     setProgress(50, '正在生成 PPTX...');
     const schema = await WebToPPT.convertToPptx(jsonData, (msg) => {
-      setProgress(50 + Math.min(40, Math.floor(Math.random() * 40)), msg);
+      setProgress(60, msg);
     });
 
-    // 4. 生成 PPTX 并通过 background 下载
-    setProgress(90, '正在打包...');
+    // 4. 生成 PPTX blob
+    setProgress(85, '正在打包...');
     const blob = await WebToPPT.schemaToPptxBlob(schema);
+
+    // 5. 转 base64
     const buffer = await blob.arrayBuffer();
     const bytes = new Uint8Array(buffer);
     let binary = '';
@@ -112,7 +96,7 @@ async function exportPptx() {
     }
     const base64 = btoa(binary);
 
-    // 5. 让 background 执行下载
+    // 6. 让 background 下载
     setProgress(95, '正在下载...');
     const title = jsonData.source?.title || 'webpage';
     const safeTitle = title.replace(/[\\/:*?"<>|]+/g, '-').replace(/\s+/g, '-').slice(0, 64) || 'webpage';
@@ -123,13 +107,13 @@ async function exportPptx() {
       base64,
       filename
     });
+
     if (!dlResult || !dlResult.ok) {
       throw new Error(dlResult?.error || '下载失败');
     }
 
-    setProgress(100, `已导出：${filename}`);
+    setProgress(100, '导出完成');
     setResult('success', '导出完成');
-    // 不自动关闭 popup，等用户选完保存位置
 
   } catch (error) {
     setProgress(0, error.message || String(error));